api.vextorium.com
Base, Optimism, Polygon · payout 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf
Answers HTTP 402
0 of 5 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-10-05
Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.
x402-style payments, last 7 days (Base)
964 x402-style payments from 6 distinct payers, $3.76 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 964
- Outside payers
- 6
- USDC
- 3.76
All USDC received at this payout address: $3.76 (includes payments that are not x402)
Method: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.
Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-05, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out
Delivery is not measured. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Chains · one payout address, each chain read on its own
| Chain | Payout address | Listings | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 1,013 | 0 of 5 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-05 | 964 x402-style payments from 6 distinct payers, $3.76 USDC in the last 7 days (Base, exact read) |
| Optimism | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 531 | unknown | unknown. not measured on this chain yet |
| Polygon | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 33 | unknown | unknown. not measured on this chain yet |
- Hosts
- api.vextorium.com
- Listings
- 1,577 registered in the x402 catalogue
- Price range
- $0.0010 to $0.020 per call, as registered
- Categories (auto)
- Onchain data (545), Market data (319), Developer tools (210), Other (209), Security (62), Identity (60), Web data (60), Media (43), Commerce (33), Inference (18), Search (15), Agents (3)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0xb9f06d…b71acf to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.
Registrations · 1,578
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://api.vextorium.com/v1/image-palette Dominant colors of an image (URL or base64) with their share, in HEX and RGB, plus the average color and light/dark tone. For brand palettes, themes or tagging images by color. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/impermanent-loss Impermanent loss calculator for Uniswap v2 (full range) and v3/v4 concentrated ranges: IL vs holding, out-of-range flag and final token mix. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/ip-info Public information about an IP address: network prefix, autonomous system (ASN) and holder, registration country, regional registry and abuse contact, or whether it is private/reserved. RIPEstat data. | Base | Identity | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/ip-subnet IPv4/IPv6 subnet calculator: network, mask, wildcard, broadcast, first/last host, usable hosts, address type (private, public, loopback...) and whether a given IP belongs to the subnet. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/isin-validate Validate a securities ISIN (ISO 6166): format, check digit, issuing country and embedded CUSIP (US/CA, with its own check) or SEDOL (GB/IE). Computed locally; nothing stored. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/json-diff Deep comparison of two JSON documents: added, removed and changed values with their exact path, optionally ignoring list order. Detect changes in API responses, configs or data snapshots. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/json-inspect Validate JSON (with line and column of the error), pretty-print or minify it, describe its structure (depth, keys, value types) and extract a value by path such as data.items[0].price. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/json-schema-generate Generate a JSON Schema (draft 2020-12) from an example JSON: types, properties, arrays, required fields and formats (date, date-time, email, uri). For API docs, tool definitions and output validation. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/json-schema-validate Validate JSON data against a JSON Schema (drafts 4 to 2020-12, with format checks): valid flag and every error with its exact path and failing rule. Check API responses or LLM structured output. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/jwt-verify Decode a JWT and verify its signature with the public keys of a JWKS URL (RS256, ES256, EdDSA...) or an HMAC secret, checking expiry, audience and issuer; returns header, claims and the exact reason if invalid. Tokens a… | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/kaspa-address Kaspa: balance of an address (kaspa:...) with transaction count and USD value; without an address, network status (blocks, difficulty, hashrate, circulating and max supply). | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/keywords Extract keywords and keyphrases from a text without AI (RAKE algorithm scoring frequency and degree), in Spanish or English, plus most frequent words. For tagging, indexing and SEO. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/latest-block Latest block on an EVM chain: number, hash, time, age in seconds, transaction count, gas used % and base fee. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/lei-search Find a company's LEI (Legal Entity Identifier) by name, or the record of a LEI: legal name, country, legal form, address, entity and registration status, renewal date, direct parent and company register number. | Base | Other | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/lei-validate Validate a Legal Entity Identifier (LEI, ISO 17442): 20-character format and mod-97 check digits, split into LOU prefix and entity part. Computed locally; does not query GLEIF. | Base | Other | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/list-compare Compare two lists (emails, IDs, wallets, SKUs...): items in both, only in A, only in B, duplicates within each and union, with counts. Up to 100,000 items per list. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/llm-token-count Count the tokens of a text with OpenAI tokenizers (o200k for GPT-4o/4.1/5, cl100k for GPT-4/3.5) plus estimates for Claude, Llama and Gemini, with characters per token. Budget LLM calls and split contexts. | Base | Inference | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/llms-txt-read Read a website's /llms.txt (the standard that tells LLMs what a site is about) as structured data: title, summary, sections with links and descriptions, and whether llms-full.txt exists. | Base | Inference | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/loan-liquidation-price Collateralized DeFi loan (Aave/Compound style): health factor, current LTV, collateral liquidation price, drop it can withstand, extra borrowing room and how much to repay or add to reach a 1.5 health factor. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/margin-calculator Pricing calculator: from any two of cost, price, margin or markup it computes the rest, profit per unit and total, and the price with VAT. Avoids the classic margin vs markup confusion. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/market-hours World stock exchanges clock: status (open, closed, lunch break), local time, today's session and next open for NYSE, Toronto, London, Euronext, Xetra, Madrid, Zurich, Tokyo, Hong Kong, Shanghai, India and Sydney. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/moon-phase Moon phase on a date: name, illuminated percentage, lunar age and the next new and full moon dates. Local astronomical calculation. | Base | Other | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/morpho-vaults Morpho lending vaults run by curators: name, deposited asset, chain, net APY, deposits in USD, fee and curator; filter by asset (USDC, WETH...) and chain, sort by deposits or APY. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/near-account NEAR account (name.near or 64-hex implicit): available and staked NEAR, storage used, whether it has a contract deployed and USD value. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/nft-owner Current owner of an ERC-721 NFT by token_id (ownerOf), with collection name and tokenURI. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/nfts-of-wallet Token ids of an ERC-721 collection held by a wallet (tokenOfOwnerByIndex on enumerable collections) and the total count. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll,… | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/nostr-profile Nostr profile by npub, hex key or NIP-05 identifier (name@domain): name, bio, picture, website, NIP-05, Lightning address and latest public notes, queried from several public relays. | Base | Identity | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/npm-package npm package profile: latest version, description, license, repository, dependencies, unpacked size, weekly and monthly downloads, maintainers and deprecation flag. For dependency choice and audits. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/number-base-convert Convert integers of any size (signed) between bases 2 to 36: binary, octal, decimal, hex, base32, base36, with bit and byte length and two's complement. Accepts 0x/0b/0o prefixes. | Base | Media | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/number-to-words Write a number or money amount in words, in Spanish or English (EUR, USD, GBP, MXN), with correct Spanish apocope (veintiún, un millón de euros). For invoices, cheques and contracts. | Base | Other | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/page-images Images on a page with URL, alt text, declared size, lazy loading and format, counting images without alt text and flagging missing modern formats. For accessibility and SEO audits. | Base | Web data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/page-links All links on a page classified as internal or external, with anchor text, nofollow/sponsored, new-tab flags and the most linked external domains. For SEO, crawling and audits. | Base | Web data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/password-strength Estimate password strength with Dropbox's zxcvbn: score 0-4, estimated guesses and crack time for online and offline attacks, weak patterns found (dictionary, dates, sequences...) and tips. Evaluated in memory, never st… | Base | Security | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/pendle-markets Pendle markets (fixed yield in DeFi): asset, maturity, days left, implied fixed APY (buying PT), LP APY and liquidity, on Ethereum, Arbitrum, Base, BNB and other chains. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/phone-validate Validate and normalize a phone number from any country: E.164, national and international format, type (mobile, landline, toll-free, VoIP...), country, region, original carrier and time zones. Nothing is called or store… | Base | Identity | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/pii-redact Redact personal data from text without AI: emails, phone numbers, IBANs, card numbers (Luhn-checked), Spanish DNI/NIE, IPs, crypto addresses and URLs, replaced by labels ([EMAIL_1]) or asterisks. Before sending text to … | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/pnl-calculator Trade result: gross and net profit or loss after entry/exit fees and funding, return on margin, price change, break-even price and notional. Long or short, with leverage. | Base | Market data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/position-check Re-check a token you already hold against your entry: liquidity below 25% of entry, risk score drop, dangerous powers active (mint, freeze, pause...), honeypot pattern or inflated volume. Verdict CLEAN (LIMPIO), DEGRADE… | Base | Security | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/provider-status Live status of widely used cloud services and APIs (GitHub, Cloudflare, OpenAI, Anthropic, Discord, Vercel, npm, Twilio, DigitalOcean, Coinbase, Atlassian, Netlify, Supabase) from their status pages: overall state, affe… | Base | Inference | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/proxy-detect Detect whether a contract is an upgradeable proxy (EIP-1967 transparent/UUPS, beacon, ZeppelinOS, EIP-1167 minimal) and return implementation, admin and beacon. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB … | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/public-holidays Official public holidays of 150+ countries and their regions (Spanish autonomous communities, US states, German Länder...) for a year, whether a given date is a holiday, and the next holiday. | Base | Other | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/public-rpcs Keyless public RPC endpoints (HTTPS and WebSocket) of any EVM chain by name or chainId, with block explorers, native currency and website. Lets an agent connect to any chain. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/pubmed-search Search biomedical literature on PubMed (NIH): title, authors, journal, date, DOI, PMID and abstract of each article, newest first, with optional year filter. | Base | Search | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/pypi-package Python package profile from PyPI: latest version and date, summary, license, required Python, author, links, dependencies, recent downloads and yanked flag. | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/qr-barcode-read Read the codes in an image URL: QR, Data Matrix, Aztec, PDF417, EAN-13, UPC, Code 128, Code 39... with format, content and position; flags URLs, crypto payment URIs (bitcoin:, ethereum:, solana:) and wifi credentials. | Base | Media | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/qr-generate Generate a QR code as SVG or PNG (base64 and data URI) for any text, URL, payment link, Wi-Fi or vCard, with error-correction level, scale and colors. | Base | Media | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/random Randomness for agents: flip coins, roll dice, draw numbers in a range, pick from a list or shuffle it. Cryptographically secure by default; with verificable=true it is derived from the latest finalized Ethereum block ha… | Base | Developer tools | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/revoke-approval Build the transaction that revokes a contract's permission over an ERC-20 token (approve(spender, 0)): target and calldata ready to sign in your wallet. Nothing is sent. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/robots-txt Parse a site's robots.txt: whether a user-agent may crawl a path, which AI crawlers (GPTBot, ClaudeBot, Google-Extended, PerplexityBot, CCBot...) are blocked, and declared sitemaps. Check before your agent scrapes. | Base | Web data | $0.003 | 2026-10-03 |
https://api.vextorium.com/v1/roman-numerals Convert Arabic numbers to Roman numerals (1-3999) and Roman to Arabic, validating the canonical form (MCMXCIV) and suggesting the correct one. | Base | Developer tools | $0.003 | 2026-10-03 |
Descriptions are the seller’s own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
Data CC-BY-4.0, attribution: data by satohub.ai. Collector run 2026-10-05. Appearing here is not an endorsement. Check an endpoint with the doctor.